package com.bite.common.core.domain;

import com.bite.common.core.enums.ResultCode;
import lombok.Data;

@Data
public class R<T> {
    private int code;
    // 定义一些统一的code
    private String msg;
    //通常作为code的辅助说明    code 和 msg 保持对应关系
    private T data;   //返回类型不同


    public static <T> R<T> ok() {
        return assembleResult(null,ResultCode.SUCCESS);
    }


    public static <T> R<T> ok(T data) {
        return  assembleResult(data,ResultCode.SUCCESS);
    }


    public  static <T>R<T> fail() {
        return assembleResult(null,ResultCode.FAILED);
    }

    public  static <T>R<T> fail(ResultCode resultCode) {
        return assembleResult(null,resultCode);
    }

    public  static <T>R<T> fail(int code ,String message) {
        return assembleResult(code,message,null);
    }




    private static <T> R<T> assembleResult(T data, ResultCode resultCode) {
        R<T> r = new R<>();
        r.setCode(resultCode.getCode());
        r.setData(data);
        r.setMsg(resultCode.getMsg());
        return r;
    }

    private static <T> R<T> assembleResult(int code, String msg,T data) {
        R<T> r = new R<>();
        r.setCode(code);
        r.setData(data);
        r.setMsg(msg);
        return r;
    }
}
